Estuaries and Coasts, Journal Year: 2021, Volume and Issue: 44(2), P. 396 - 411
Published: Jan. 15, 2021
Language: Английский
Nature Communications, Journal Year: 2019, Volume and Issue: 10(1)
Published: Sept. 5, 2019
Abstract The term Blue Carbon (BC) was first coined a decade ago to describe the disproportionately large contribution of coastal vegetated ecosystems global carbon sequestration. role BC in climate change mitigation and adaptation has now reached international prominence. To help prioritise future research, we assembled leading experts field agree upon top-ten pending questions science. Understanding how affects accumulation mature during their restoration high priority. Controversial included carbonate macroalgae cycling, degree which greenhouse gases are released following disturbance ecosystems. Scientists seek improved precision extent ecosystems; techniques determine provenance; understanding factors that influence sequestration ecosystems, with corresponding value BC; management actions effective enhancing this value. Overall overview provides comprehensive road map for coming decades on research
Language: Английский
Citations
762
Science Advances, Journal Year: 2020, Volume and Issue: 6(41)
Published: Oct. 7, 2020
A total of 3612 ha seagrass habitat was restored to the Virginia coast along with services like blue carbon and fisheries.
Language: Английский
Citations
238
Marine Pollution Bulletin, Journal Year: 2018, Volume and Issue: 134, P. 106 - 117
Published: Feb. 17, 2018
Language: Английский
Citations
171
Ecosystems, Journal Year: 2017, Volume and Issue: 21(3), P. 551 - 566
Published: July 10, 2017
Globally, seagrass ecosystems are considered major blue carbon sinks and thus indirect contributors to climate change mitigation. Quantitative estimates multi-scale appraisals of sources that underlie long-term storage sedimentary vital for understanding coastal dynamics. Across a tropical–subtropical continuum in the Western Indian Ocean, we estimated organic (Corg) inorganic (Ccarb) stocks sediment. Quantified levels variability two were evaluated with regard relative importance environmental attributes terms plant–sediment properties landscape configuration. The explored habitats encompassed low moderate Corg (ranging from 0.20 1.44% on average depending species- site-specific variability) but higher than unvegetated areas 0.09 0.33% variability), suggesting some (at tropical Zanzibar particular) potentially important as sinks. amount carbonate clearly corresponded levels, carbonates may represent source, this could diminish strength sediments region. Partial least squares modelling indicated variations Ccarb primarily predicted by sediment density (indicating negative relationship content stocks) configuration positive effect meadow area, area other habitats, stocks), while structural complexity also contributed, though lesser extent, model performance. findings suggest accurate sink assessments require an processes well better knowledge how dynamics driven cross-habitat links sink–source relationships scale-dependent context, which should be priority conservation.
Language: Английский
Citations
151
Scientific Reports, Journal Year: 2020, Volume and Issue: 10(1)
Published: April 3, 2020
Seagrass meadows are considered important natural carbon sinks due to their capacity store organic (Corg) in sediments. However, the spatial heterogeneity of storage seagrass sediments needs be better understood improve accuracy Blue Carbon assessments, particularly when strong gradients present. We performed an intensive coring study within a sub-tropical estuary assess variability sedimentary Corg associated with seagrasses, and identify key factors promoting this variability. found pattern estuary, from 52.16 mg cm-3 upper parts, declining 1.06 at mouth, despite general gradient increasing cover habitat extent opposite direction. The underneath came principally allochthonous (non-seagrass) sources (~70-90 %), while contribution seagrasses was low (~10-30 %) throughout entire estuary. Our results showed that stored can highly variable attributed largely accumulation fine inputs sources. Local features existence must estimates coastal ecosystems.
Language: Английский
Citations
127
Remote Sensing, Journal Year: 2020, Volume and Issue: 12(3), P. 355 - 355
Published: Jan. 21, 2020
Seagrass has been acknowledged as a productive blue carbon ecosystem that is in significant decline across much of the world. A first step toward conservation mapping and monitoring extant seagrass meadows. Several methods are currently use, but resource from satellite images using machine learning not widely applied, despite its successful use various comparable applications. This research aimed to develop novel approach for state-of-the-art with data Sentinel–2 imagery. We used Tauranga Harbor, New Zealand validation site which extensive ground truth available compare ensemble involving random forests (RF), rotation (RoF), canonical correlation (CCF) more traditional maximum likelihood classifier (MLC) technique. Using group metrics including F1, precision, recall, accuracy, McNemar test, our results indicated techniques outperformed MLC RoF best performer (F1 scores ranging 0.75–0.91 sparse dense meadows, respectively). Our study comparison ensemble-based we aware, promises be an effective enhance accuracy monitoring.
Language: Английский
Citations
96
Scientific Reports, Journal Year: 2020, Volume and Issue: 10(1)
Published: April 30, 2020
Abstract Awarding CO 2 offset credits may incentivize seagrass restoration projects and help reverse greenhouse gas (GHG) emissions from global loss. However, no study has quantified net GHG removal the atmosphere a project, which would require coupled C org stock flux enhancement measurements, or determined whether creditable benefit can finance restoration. We measured all of necessary accounting parameters in 7-km Zostera marina (eelgrass) meadow Virginia, U.S.A., part largest, most cost-effective to date, provide first test-of-concept. Restoring removed 9,600 tCO over 15 years but also enhanced both CH 4 N O production, releasing 950 e. Despite tripling 0.06 g m −2 yr −1 increasing 8-fold 0.8 , now offsets 0.42 e ha is roughly equivalent sequestration rate for inventory lower than rates temperate tropical forests. The financial this highly successful $87 K at $10 MtCO defrays ~10% cost. Managers should consider co-benefits, additional incentives
Language: Английский
Citations
89
Global Biogeochemical Cycles, Journal Year: 2021, Volume and Issue: 35(6)
Published: May 21, 2021
Abstract Seagrass meadows rank among the most significant organic carbon (C org ) sinks on earth. We examined variability in seagrass soil C stocks and composition across Australia identified main drivers of variability, applying a spatially hierarchical approach that incorporates bioregions geomorphic settings. Top 30 cm were similar settings (min‐max: 20–26 Mg ha −1 ), but formed by large species (i.e., Amphibolis spp. Posidonia spp.) showed higher (24–29 than those smaller (e.g., Halodule, Halophila, Ruppia, Zostera, Cymodocea, Syringodium ; 12–21 ). In temperate coastal dominated species, mainly derived from (72 ± 2%), while allochthonous small tropical estuarine (64 5%). meadows, enhanced low hydrodynamic exposure associated with high mud contents. contributions , to moderate solar radiation, human pressure. energy, rainfall, radiation. These results showcase bioregion setting are not necessarily good predictors site‐specific estimates based local environmental factors needed for Blue Carbon projects greenhouse gases accounting purposes.
Language: Английский
Citations
56
One Earth, Journal Year: 2025, Volume and Issue: unknown, P. 101175 - 101175
Published: Feb. 1, 2025
Language: Английский
Citations
1
Communications Earth & Environment, Journal Year: 2025, Volume and Issue: 6(1)
Published: Feb. 20, 2025
Language: Английский
Citations
1